Completed target tree move of the ata driver code. Some code cleanup.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11655 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 76 insertions, 0 deletions

diff --git a/firmware/target/sh/archos/ata-archos.c b/firmware/target/sh/archos/ata-archos.c
new file mode 100755
index 0000000000..73e56b8d84
--- /dev/null
+++ b/firmware/target/sh/archos/ata-archos.c
@@ -0,0 +1,76 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Jens Arnold
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "config.h"
+#include "cpu.h"
+#include <stdbool.h>
+#include "kernel.h"
+#include "system.h"
+#include "ata-target.h"
+#include "hwcompat.h"
+
+volatile unsigned char* ata_control;
+int ata_io_address; /* 0x300 or 0x200 */
+
+void ata_reset(void)
+{
+    /* state HRR0 */
+    and_b(~0x02, &PADRH); /* assert _RESET */
+    sleep(1); /* > 25us */
+
+    /* state HRR1 */
+    or_b(0x02, &PADRH); /* negate _RESET */
+    sleep(1); /* > 2ms */
+}
+
+void ata_address_detect(void)
+{
+    if (read_hw_mask() & ATA_ADDRESS_200)
+    {
+        ata_io_address = 0x200; /* For debug purposes only */
+        ata_control = ATA_CONTROL1;
+    }
+    else
+    {
+        ata_io_address = 0x300; /* For debug purposes only */
+        ata_control = ATA_CONTROL2;
+    }
+}
+
+void ata_enable(bool on)
+{
+    if(on)
+        and_b(~0x80, &PADRL); /* enable ATA */
+    else
+        or_b(0x80, &PADRL); /* disable ATA */
+
+    or_b(0x80, &PAIORL);
+}
+
+void ata_device_init(void)
+{
+    or_b(0x02, &PAIORH); /* output for ATA reset */
+    or_b(0x02, &PADRH);  /* release ATA reset */
+    PACR2 &= 0xBFFF; /* GPIO function for PA7 (IDE enable) */
+}
+
+bool ata_is_coldstart(void)
+{
+    return (PACR2 & 0x4000) != 0;
+}